A5061861168- Aortic aneurysm repair treatments
- Aortic Disease and Treatment Approaches
- Vascular Procedures and Complications
- Cardiac Imaging and Diagnostics
- Abdominal Surgery and Complications
- Shape Memory Alloy Transformations
- Cerebrovascular and Carotid Artery Diseases
- Infectious Aortic and Vascular Conditions
- Coronary Interventions and Diagnostics
- Intracranial Aneurysms: Treatment and Complications
- Advanced X-ray and CT Imaging
The First Affiliated Hospital, Sun Yat-sen University
2018
Sun Yat-sen University
2018
Johnson & Johnson (United States)
2008
North Carolina State University
2005-2006
Abstract An aneurysm is a local artery ballooning greater than 50% of its nominal diameter with risk sudden rupture. Minimally invasive repair can be achieved by inserting surgically stent-graft, called an endovascular graft (EVG), which either straight tubular, curved or bifurcating. However, post-procedural complications may arise because elevated stagnant blood pressure in the cavity, i.e., sac formed EVG and weakened wall. In order to investigate underlying mechanisms leading...
<h3>BACKGROUND AND PURPOSE:</h3> Some retrospective studies have found that the aneurysm wall enhancement on high-resolution MR vessel postgadolinium T1WI has potential to distinguish unstable aneurysms. This study aimed identify hemodynamic characteristics differ between enhanced and nonenhanced areas of T1WI. <h3>MATERIALS METHODS:</h3> TOF-MRA 25 patients were fused localize area wall. Using computational fluid dynamics, we studied models. Mean static pressure, mean shear stress,...
Sudden rupture of abdominal aortic aneurysm (AAA), often without prior medical warning, is the 13th leading cause mortality in US. The local triggered when elusive maximum wall stress exceeds patient's yield stress. Employing a validated fluid – structure interaction code, coupled blood flow and AAA dynamics were simulated analysed for two representative asymmetric AAAs with different neck angles iliac bifurcations. It turned out that morphology plays an important role deformation...
Insertion of a stent-graft into an aneurysm, especially abdominal aortic aneurysms (AAAs), is very attractive surgical intervention; however, it not without major postoperative complications, such as endoleaks. An endoleak the transient accumulation blood in AAA cavity, which formed by and walls. Of four pathways, type I constitutes one. Thus, focusing on both proximal distal endoleaks, i.e., minute net influx past attachment points three-dimensional interactions between luminal flow wall,...